html 头部设置
https://juejin.im/post/5a4ae29b6fb9a04504083cac
<head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta http-equiv="pragma" content="no-cache"/> <meta http-equiv="cache-control" content="no-cache"/> <meta http-equiv="expires" content="0"/> </head>